Which is not a function of the respiratory system?

• filters and moistens air that enters the mouth/ nose

• transports oxygen to and carbon dioxide out of the body

• breaks down and deliver nutrients from food and air to body cells

• involved in the process of talking and smelling

In which part of the lungs does the exchange of oxygen and carbon dioxide happen?

Type the letter of your answer.

Part of the respiratory system which is also involved in the digestive system

Type the letter of your answer

Which shows the correct sequence of air into our lungs?

• mouth/ nose > pharynx > larynx > trachea > bronchi > bronchioles > alveoli

• mouth/ nose > larynx > pharynx > trachea > bronchi > bronchioles > alveoli

• mouth/ nose > pharynx > larynx > trachea > bronchioles > bronchi > alveoli

• mouth/ nose > larynx > pharynx > trachea > bronchioles > bronchi > alveoli

Which is not a function of the heart valves?

• prevents blood from flowing back to where it came from

• helps move blood inside the heart

• pumps the blood from the atrium to the ventricle

• none of the above

TRUE or FALSE

Both the right and left atrium contains oxygen-rich blood.

• TRUE

• FALSE

Which is NOT true about deoxygenated blood?

• it carries carbon dioxide released from tissues

• it is a result of gas exchange

• it is blue due to lack of oxygen

• none of the above

Which shows the correct sequence of blood flow in the heart?

• superior & inferior vena cava > right atrium > right ventricle > pulmonary veins > lungs > left atrium > pulmonary artery > left ventricle > aorta > body

• superior & inferior vena cava > right atrium > left ventricle > left atrium > pulmonary artery > lungs > pulmonary veins > right ventricle > aorta > body

• superior & inferior vena cava > right atrium > right ventricle > pulmonary artery > lungs > pulmonary veins > left ventricle > left atrium > aorta > body

• superior & inferior vena cava > left atrium > left ventricle > right atrium > pulmonary artery > lungs > pulmonary veins > right ventricle > aorta > body

What do you call the circulation involving the blood flow from the heart to the rest of the body?

• Pulmonary Circulation

• Body Circulation

• Systemic Circulation

• Renal Circulation

• Systematic Circulation

Identify the part where the arrow is pointing at.

• Pulmonary Artery

• Pulmonary Vein

• Jugular Vein

• Superior Vena Cava